<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>

<div id="app">
  <h2>{{firstName}} {{lastName}}</h2>
  <h2>{{getFullName()}}</h2>
  <!--计算属性的方法: 直接写，不需要加小括号-->
  <h2>{{fullName}}</h2>
</div>

<script src="../js/vue.js"></script>
<script>
  const app=new Vue({
    el: '#app',
    data: {
      firstName: 'zhou',
      lastName: 'ziShu'
    },
    // computed:计算属性
    computed:{
      fullName:function (){
        return this.firstName + ' ' + this.lastName
      }
    },
    methods:{
      getFullName:function (){
        return this.firstName + ' ' + this.lastName
      }
    }
  })

</script>
</body>
</html>